Reimport new animations to already imported character doesn't work

I have a .blend file where I modelled my character and added some animations. When I import the first time, it's ok, i can see all the animations, but if I add more animations to the .blend file using blender and save the file, I can't see the new animations in Unity after I reimport the .blend file.

The only why is removing the character from unity assets, and importing it again like first time... having to redo some stuff after that... beacause the character was removed from assests and scene...

Any way of getting reimport working?

Sorry for my english...